<!DOCTYPE html>
<html>
    <head>
	<meta charset="utf-8" />
		<title></title>
<!--[if lt IE 9]><!-->
    		<script src="http://code.jquery.com/jquery-1.11.3.min.js "></script>
<!--<![endif]-->
<!--[if gte IE 9]><!-->
			<script src="https://code.jquery.com/jquery-3.2.1.min.js "></script>
<!--<![endif]-->
	<script>
	$(document).ready(function(){
    $("button").click(function(){
        $("input:text").val("Glenn Quagmire");
    });
});
</script>
</head>
<body>
 
<p>名称: <input type="text" name="user"></p>
<button>设置输入字段的值</button>
 
</body>
</html>
